Agree with Mike, probably best not to extend your schema. It will be harder to filter on and update through the GUI too.. Just use custom attributes if you must.

I don't know where in the world you are and what local legislation is, but I would be wary of implementing something like this. It sounds like a potential lawsuit waiting to happen. In the days when I was on the customer side, I would not do anything that
sounded dodgy, full stop.

Legitimate scenarios I can think of usually involve HR departments wanting to do equality surveys and the like, and typically they might want to personalise the message in some way anyway, and will already have a database with fields including gender. I'd
kind of lean towards suggesting they look at doing a mail merge using their information and leave well alone ;-)

Steve

Steve Goodman
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